CN100505912C - Service and Radio Resource Control in Wireless Communication Equipment - Google Patents

Abstract

A traffic and radio resource control in a wireless device with multiple operation modes is disclosed. For accomplishing an efficient use of physical and radio resources in terms of the required service level, a first set of radio transmission resources is selected for an assembled output data stream. A path is then searched for with respect to each destination node of the stream, each path leading from the wireless communication device to the destination node in question and fulfilling the service level requirement corresponding to that destination node. The transmission of the output data stream is then scheduled according to the current state of the wireless communication device, when a path is found for each of the destination nodes. The operation modes of the wireless communication device are controlled to maintain the required service level during the transmission.

Description

Translated fromChinese

无线通信设备中的业务及无线资源控制Service and Radio Resource Control in Wireless Communication Equipment

技术领域technical field

本发明涉及多模式无线通信设备(此后也称作无线设备)中的业务控制。这里，术语＂多模式＂是指具有多个操作模式并且能够分别根据多个标准或事实上的解决方案提供无线连通性的无线通信设备。无线通信设备可以是固定或移动网络单元，或移动设备。The present invention relates to traffic control in multi-mode wireless communication devices (hereinafter also referred to as wireless devices). Here, the term "multi-mode" refers to a wireless communication device having multiple modes of operation and capable of providing wireless connectivity according to multiple standards or de facto solutions, respectively. A wireless communication device may be a fixed or mobile network element, or a mobile device.

背景技术Background technique

朝着真正移动计算及联网方向的当前发展已引起各种接入技术的发展，当用户在他们自己的归属网络之外时，这些接入技术也为用户提供对因特网的接入。目前，无线因特网接入通常基于短距离无线系统、移动网络、或前两者。Current developments towards truly mobile computing and networking have led to the development of various access technologies that also provide users with access to the Internet when they are outside their own home network. Currently, wireless Internet access is typically based on short-range wireless systems, mobile networks, or both.

短距离无线系统一般具有从几十米到一百米的范围。它们常常与有线连接到因特网的系统结合以提供长距离通信。短距离无线系统的种类包括无线个人区域网(PAN)和无线局域网(WLAN)。它们具有在无线频谱的未许可部分，通常在2.4GHz的工业、科学和医学(ISM)频带或5GHz未许可频带中工作的共同特性。Short-range wireless systems generally have a range from tens of meters to a hundred meters. They are often combined with systems wired to the Internet to provide long-distance communications. Types of short-range wireless systems include wireless personal area networks (PANs) and wireless local area networks (WLANs). They have the common characteristic of operating in an unlicensed portion of the wireless spectrum, usually in the 2.4GHz Industrial, Scientific and Medical (ISM) band or the 5GHz unlicensed band.

无线个人区域网是成本合算的，并且使用范围通常为大约十米的低功率无线设备。无线个人区域网技术的众所周知的例子是蓝牙，其利用2.4GHz ISM频带。蓝牙提供了1Mbps的峰值空中链路速度，并且对于在诸如PDA和移动电话的个人、便携电子设备中的使用有足够低的功耗。无线局域网通常以大约2到100Mbps的较高峰值速度工作，并且具有较大的范围，其需要更大的功耗。Wireless personal area networks are cost effective and use low power wireless devices with a range typically on the order of ten meters. A well-known example of wireless personal area network technology is Bluetooth, which utilizes the 2.4GHz ISM frequency band. Bluetooth provides a peak airlink speed of 1 Mbps and low enough power consumption for use in personal, portable electronic devices such as PDAs and mobile phones. WLANs typically operate at higher peak speeds of about 2 to 100 Mbps and have greater range, which requires greater power consumption.

上面所提及的发展也已带来所谓自组织网络的发展，这提供了不需任何底层基础设施的无限制移动性。自组织网络的节点常常是移动的，在这种情况下网络被称作移动自组织网络(MANET)。不同于常规无线网络，自组织网络不必一定建立在诸如基站的基础设施上。相反，自组织网络的全部节点分担网络形成和管理的职责。因此，在自组织网络中，每个节点充当将数据/消息发送到网络的其他节点的路由器，并且中间的自组织网络节点在相互距离很远的两个节点之间转发该数据/消息。独立的自组织网络至少在例如由于地理、陆地或时间的限制而不能使用固定网络基础设施时是有用的。本地自组织网络也可以被集成到例如移动网络的传统网络中。自组织网络的动态变化拓扑结构对自组织网络节点中使用的路由协议提出了高要求。这是为什么自组织网络的开发活动目前主要与路由方面有关的一个原因。The developments mentioned above have also led to the development of so-called ad hoc networks, which offer unrestricted mobility without any underlying infrastructure. The nodes of an ad hoc network are often mobile, in which case the network is called a mobile ad hoc network (MANET). Unlike conventional wireless networks, ad hoc networks do not necessarily have to be built on infrastructure such as base stations. In contrast, all nodes of an ad hoc network share the responsibility for network formation and management. So, in an ad hoc network, each node acts as a router that sends data/messages to other nodes of the network, and intermediate ad hoc network nodes forward that data/message between two nodes that are far apart from each other. Independent ad-hoc networks are useful at least when fixed network infrastructure cannot be used, eg due to geographical, terrestrial or time constraints. Local ad hoc networks can also be integrated into traditional networks such as mobile networks. The dynamically changing topology of ad hoc networks places high demands on the routing protocols used in ad hoc network nodes. This is one reason why the development activity of ad hoc networks is currently mainly concerned with routing aspects.

随着以上所讨论的发展，在终端中使用的无线技术的数量以及多模式(及多标准)无线终端的数量将增加。随着用于联网的技术的数量的增加，未来网络内的终端的多样性将增加。例如，自组织网络的充当自组织网络中其他自组织网络节点的接入点或网关的中继节点与无线接入网的接入点，以及与作为其从属节点的至少一个其他自组织网络节点进行通信。针对无线接入网的无线接口通常基于与针对自组织网络的无线接口不同的技术。更进一步地，自组织网络内的节点间连接可基于不同的技术。With the developments discussed above, the number of wireless technologies used in terminals and the number of multi-mode (and multi-standard) wireless terminals will increase. As the number of technologies used for networking increases, the diversity of terminals within future networks will increase. For example, a relay node of an ad hoc network acting as an access point or gateway to other ad hoc network nodes in the ad hoc network with an access point of the radio access network and with at least one other ad hoc network node as its subordinate node to communicate. The radio interface for a radio access network is usually based on a different technology than the radio interface for an ad hoc network. Still further, inter-node connections within an ad hoc network can be based on different technologies.

因此，除执行数据流的路由之外，一个节点可能不得不处理相同或不同无线接口上的多个数据流。因此该节点必须确保例如对于各个数据流均满足端到端服务质量(QoS)要求，即使不同接口的服务质量解决方案及其他能力，以及相关数据流的QoS要求会彼此有很大的不同。Thus, in addition to performing routing of data flows, a node may have to handle multiple data flows on the same or different radio interfaces. The node must therefore ensure eg that end-to-end Quality of Service (QoS) requirements are fulfilled for each data flow, even though the QoS solutions and other capabilities of different interfaces, and the QoS requirements of the relevant data flows may differ considerably from each other.

在以上提及的通信环境中，问题在于如何处理及协调不同数据流以保证为不同连接提供端到端服务，同时也使服务质量(QoS)要求最大，使节点的物理资源的利用最佳化，以及使干扰和功耗最小。In the communication environment mentioned above, the problem is how to process and coordinate different data streams to ensure end-to-end services for different connections, while also maximizing the quality of service (QoS) requirements and optimizing the use of physical resources of nodes , as well as minimizing interference and power consumption.

本发明寻求提供上面提及的问题的解决方案。The present invention seeks to provide a solution to the above mentioned problems.

发明内容Contents of the invention

本发明寻求改进多模式无线通信设备中的业务及无线资源控制，以实现该设备中总体高效的业务传送。换言之，本发明寻求使多模式无线设备能够尽可能最优地利用其物理及无线资源，同时也能够以最优方式满足不同端到端连接的QoS要求。The present invention seeks to improve traffic and radio resource control in a multimode wireless communication device to enable overall efficient traffic delivery in the device. In other words, the present invention seeks to enable a multi-mode wireless device to utilize its physical and radio resources as optimally as possible, while also being able to satisfy the QoS requirements of different end-to-end connections in an optimal way.

在本发明中，将在某一输出方向发送的数据流的数据单元(包)被基于与该数据流相关的服务质量(QoS)参数安排到至少一个输出数据流中。这可能涉及使针对不同类型的连接不同地定义的质量参数适合共同尺度，使得针对共同“质量尺度”来确定每个流所需的QoS。然后从无线设备中当前可用的无线发送资源中为所安排的包选择一组无线发送资源。这包括操作模式的选择，并且也可包括至少一个链接的选择，如果所选择的操作模式包括若干链接的话。响应该选择，接着搜索从无线设备引至包的目的节点并且满足包的QoS要求的路径。当评估从无线设备到目的节点的不同可用路径的服务等级时，假定利用属于所选择的无线发送资源组的无线发送资源来实现路径的第一段(leg)。如果满足QoS要求的路径被找到，则控制过程根据无线设备的当前状态调度该至少一个输出数据流的发送。除控制所选择的发送资源之外，在实际发送之前也可能需要进行设备的其他无线电通信(radio)的控制，以保证所述其他无线电通信不降低发送无线设备的性能。控制可涉及同步不同无线电通信的状态以保持发送无线设备的所需性能级别。In the present invention, data units (packets) of a data stream to be sent in a certain output direction are arranged into at least one output data stream based on Quality of Service (QoS) parameters associated with the data stream. This may involve fitting quality parameters defined differently for different types of connections to a common scale, so that the QoS required for each flow is determined for a common "quality scale". A set of radio transmission resources is then selected for the scheduled packet from currently available radio transmission resources in the wireless device. This includes selection of an operating mode, and may also include selection of at least one link, if the selected operating mode includes several links. In response to this selection, a path is then searched that leads from the wireless device to the packet's destination node and satisfies the packet's QoS requirements. When evaluating the service levels of different available paths from a wireless device to a destination node, it is assumed that the first leg of the path is implemented with radio transmission resources belonging to the selected set of radio transmission resources. If a path satisfying the QoS requirement is found, the control process schedules the transmission of the at least one outgoing data flow according to the current state of the wireless device. In addition to controlling the selected transmission resources, it may also be necessary to control other radio communications (radio) of the device before actual transmission, so as to ensure that the other radio communications do not degrade the performance of the transmitting wireless device. Control may involve synchronizing the states of the different radio communications to maintain a desired performance level of the sending wireless device.

因此本发明的一个实施例提供了具有多个操作模式的无线通信设备中进行业务及无线资源控制方法。该方法包括步骤：将至少一个输入数据流的数据单元装配成输出数据流，该数据单元被指定到至少一个目的节点，并且服务等级要求与该至少一个目的节点中的每一个相关联；以及为该输出数据流选择第一组无线发送资源，其中第一组无线发送资源属于该无线通信设备中可用的无线发送资源。该方法也包括搜索从无线通信设备引至该至少一个目的节点之一的路径的步骤，并且当该路径的一段由属于第一组无线发送资源的无线发送资源实现时，满足相应于该目的节点的服务等级要求，其中针对该至少一个目的节点中的每一个执行该搜索步骤。该方法进一步地包括步骤：当在搜索步骤中针对该至少一个目的节点中的每一个找到路径时，调度输出数据流的发送，其中该发送被调度为通过属于第一组无线发送资源的无线发送资源来执行，以及控制无线通信设备的操作模式，使得(1)当发送被调度执行时，相应于第一组无线发送资源的操作模式是活动的，而且(2)对于该无线通信设备的其他操作模式，该无线通信设备处于在发送期间保持每个目的节点的服务等级要求的状态。Therefore, an embodiment of the present invention provides a service and radio resource control method in a wireless communication device with multiple operating modes. The method comprises the steps of: assembling data units of at least one input data stream into an output data stream, the data units being destined to at least one destination node and a service level requirement associated with each of the at least one destination node; and The output data stream selects a first group of wireless transmission resources, wherein the first group of wireless transmission resources belongs to available wireless transmission resources in the wireless communication device. The method also includes the step of searching for a path leading from the wireless communication device to one of the at least one destination node, and when a section of the path is realized by a radio transmission resource belonging to the first group of radio transmission resources, the corresponding , wherein the searching step is performed for each of the at least one destination node. The method further comprises the step of: when a path is found for each of the at least one destination node in the searching step, scheduling the transmission of the output data stream, wherein the transmission is scheduled to be transmitted via radio belonging to the first set of radio transmission resources resources, and control the mode of operation of the wireless communication device such that (1) when a transmission is scheduled to be performed, the mode of operation corresponding to the first set of wireless transmission resources is active, and (2) for other wireless communication devices of the wireless communication device A mode of operation in which the wireless communication device maintains the service level requirements of each destination node during transmission.

在另一个实施例中，本发明提供了用于在具有多个操作模式的无线通信设备中控制业务及无线资源的系统。该系统包括用于将输入数据单元流装配成输出数据流的业务装配装置，该数据单元被指定到至少一个目的节点，并且该输出流针对该至少一个目的节点中的每一个具有服务等级要求，以及用于为该输出数据流选择第一组无线发送资源的资源选择装置，其中第一组无线发送资源属于该无线通信设备中当前可用的无线发送资源。该系统也包括用于搜索引至该至少一个目的节点之一的路径的路由装置，并且当该路径的一段由属于该第一组无线发送资源的无线发送资源实现时，满足相应于该目的节点的服务等级要求，路由装置被配置为搜索针对该至少一个目的节点中的每一个的路径。该系统进一步地包括用于当针对该至少一个目的节点的每一个找到路径时，调度该输出数据流的发送的业务调度装置，其中该发送被调度为通过属于该第一组无线发送资源的无线发送资源来执行，以及控制装置，用于控制该无线通信设备的操作模式，使得(1)当发送被调度执行时，相应于第一组无线发送资源的操作模式是活动的，并且(2)对于该无线通信设备的其他操作模式，该无线通信设备处于在发送期间保持每个目的节点的服务等级要求的状态。In another embodiment, the present invention provides a system for controlling traffic and radio resources in a wireless communication device having multiple modes of operation. The system includes service assembly means for assembling a stream of input data units into an output data stream, the data units being destined to at least one destination node, and the output stream having service level requirements for each of the at least one destination node, And resource selection means for selecting a first group of radio transmission resources for the output data stream, wherein the first group of radio transmission resources belongs to currently available radio transmission resources in the wireless communication device. The system also includes routing means for searching for a path leading to one of the at least one destination node, and when a section of the path is realized by a radio transmission resource belonging to the first group of radio transmission resources, satisfying that corresponding to the destination node The class of service requirements of the routing device is configured to search for a path for each of the at least one destination node. The system further comprises traffic scheduling means for scheduling the transmission of the output data stream when a path is found for each of the at least one destination node, wherein the transmission is scheduled to be via radios belonging to the first set of radio transmission resources transmitting resources to perform, and control means for controlling an operation mode of the wireless communication device such that (1) when a transmission is scheduled to be performed, the operation mode corresponding to the first set of wireless transmission resources is active, and (2) For other modes of operation of the wireless communication device, the wireless communication device is in a state of maintaining the service level requirements of each destination node during transmission.

在另一个实施例中，本发明提供了具有多个操作模式的无线通信设备。该无线通信设备包括用于将输入数据单元流装配成至少一个输出数据流的业务装配单元，该数据单元被指定到至少一个目的节点，并且该输出数据流具有针对该至少一个目的节点中的每一个的服务等级要求，以及用于为该输出数据流选择第一组无线发送资源的资源选择单元，其中第一组无线发送资源属于该无线通信设备中当前可用的无线发送资源。该无线通信设备也包括路径检测装置，用于检测对于该至少一个目的节点中的每一个，是否可得到引至该目的节点并且满足相应服务等级要求的路径，其中该路径的一段由属于第一组发送资源的无线发送资源实现。该系统进一步地包括业务调度单元，其响应于路径检测装置，用于调度输出数据流的发送，其中业务调度单元被配置为将发送调度为通过属于第一组无线发送资源的无线发送资源来执行，以及控制装置，用于控制操作模式，使得(1)当发送被调度执行时，相应于第一组无线发送资源的操作模式是活动的，并且(2)对于该无线通信设备的其他操作模式，该无线通信设备处于在发送期间保持每个目的节点的服务等级要求的状态。In another embodiment, the present invention provides a wireless communication device having multiple modes of operation. The wireless communication device includes a service assembling unit for assembling a stream of input data units into at least one output data stream, the data units being destined to at least one destination node, and the output data stream having a function for each of the at least one destination node A service level requirement, and a resource selection unit for selecting a first group of radio transmission resources for the output data stream, wherein the first group of radio transmission resources belongs to currently available radio transmission resources in the wireless communication device. The wireless communication device also includes path detection means for detecting, for each of the at least one destination node, whether a path leading to the destination node and satisfying the corresponding service level requirement is available, wherein a section of the path is owned by the first Wireless transmission resource implementation of group transmission resources. The system further includes a traffic scheduling unit, responsive to the path detection means, for scheduling the transmission of the output data stream, wherein the traffic scheduling unit is configured to schedule the transmission to be performed via radio transmission resources belonging to the first group of radio transmission resources , and control means for controlling the operation mode, so that (1) when the transmission is scheduled to be performed, the operation mode corresponding to the first group of wireless transmission resources is active, and (2) for other operation modes of the wireless communication device , the wireless communication device is in a state of maintaining the service level requirement of each destination node during transmission.

附图说明Description of drawings

下面参考附图中的图1到6所示的例子更详细地描述本发明及其优选实施例，其中：The invention and its preferred embodiments are described in more detail below with reference to the example shown in Figures 1 to 6 of the accompanying drawings, in which:

图1图解了其中可有利地实现本发明的原理的一般通信环境的例子；Figure 1 illustrates an example of a general communication environment in which the principles of the present invention may be advantageously implemented;

图2是图解根据本发明的包调度的简化方框图；Figure 2 is a simplified block diagram illustrating packet scheduling according to the present invention;

图3是图解本发明的业务及无线资源控制的流程图；FIG. 3 is a flowchart illustrating service and radio resource control of the present invention;

图4是具有本发明的功能的无线设备的一般图示；Figure 4 is a general illustration of a wireless device having the functionality of the present invention;

图5图解了其中在本发明的处理中利用移动通信网络的基站的实施例；Figure 5 illustrates an embodiment in which a base station of a mobile communication network is utilized in the process of the present invention;

图6是图解在本发明的一个实施例中无线设备的不同状态的状态图。Figure 6 is a state diagram illustrating the different states of a wireless device in one embodiment of the invention.

具体实施方式Detailed ways

如以上所讨论的，本发明寻求优化无线多模式/多无线电通信(multi-radio)设备的操作。无线设备可以是自组织网络节点或具有无线能力的移动/便携/固定设备。其也可以是接入网络中的网络单元，例如基站、无线路由器、能够执行无线路由及交换的单元、服务器、中继节点或其任何组合。在多无线电通信无线设备中，不同的无线电通信可由不同的硬件模块，不同的软件模块(软件无线电通信)，或硬件和软件模块的组合来实现。因此，其中应用本发明的环境的范围可以是从单独本地自组织网络到更加异构的环境，例如图1中所示的环境。As discussed above, the present invention seeks to optimize the operation of wireless multi-mode/multi-radio devices. A wireless device may be an ad hoc network node or a mobile/portable/fixed device with wireless capabilities. It may also be a network element in the access network, such as a base station, a wireless router, a unit capable of performing wireless routing and switching, a server, a relay node, or any combination thereof. In a multi-radio communication wireless device, different radio communications may be implemented by different hardware modules, by different software modules (software radio communication), or a combination of hardware and software modules. Thus, the environment in which the present invention is applied may range from a single local ad hoc network to a more heterogeneous environment, such as that shown in FIG. 1 .

图1图解了其中可应用本发明的通信环境的例子。系统包括三个相互作用的域：包括一个或多个自组织网络101的自组织域100、包括一个或多个无线接入网络的接入域110以及包括核心网络的主干域120。接入域包括一个或多个接入点111，例如基站、接入路由器或WLAN接入点，自组织网络通过这些接入点可被连接到无线接入网络。如下面所讨论的，接入域的网络单元也可能够组成自组织网络。FIG. 1 illustrates an example of a communication environment in which the present invention may be applied. The system comprises three interacting domains: an ad hocdomain 100 comprising one or more ad hocnetworks 101, anaccess domain 110 comprising one or more radio access networks, and abackbone domain 120 comprising a core network. The access domain includes one or more access points 111, such as base stations, access routers or WLAN access points, through which the ad hoc network can be connected to the wireless access network. As discussed below, the network elements of the access domain may also be capable of forming an ad hoc network.

每个自组织网络包括至少一个中继节点102，该中继节点102与无线接入网络的接入点通信，以及至少一个其他自组织网络节点103，中继节点充当该自组织节点的接入点或网关。所述其他节点可位于和中继节点相距不同距离的位置，所述距离以该节点与中继节点之间的跳跃数来测量，即中继节点不必具有到每个所述其他节点的直接连接，但中继节点和与该中继节点的距离大于一个跳跃的自组织网络节点之间的消息由中间自组织网络节点来转发。因此，在由中继节点服务的子网内，连接可涉及端节点和一个或多个中间节点。自组织网络节点也可组成不同的子网。中继节点也可服务于多于一个的自组织网络，并且具有不同的无线接口。除移动终端之外，自组织网络也可包括无线路由器140，其也可承担中继节点的职责。自组织网络节点、无线路由器以及接入点通常为可引入本发明的控制过程的网络单元。无线路由器也可位于接入域内，在这种情况下，自组织网络可渗透到接入域中。Each ad hoc network comprises at least onerelay node 102, which communicates with an access point of the wireless access network, and at least one other ad hocnetwork node 103, which acts as an access point for the ad hoc node point or gateway. The other nodes may be located at different distances from the relay node, the distance being measured in the number of hops between the node and the relay node, i.e. the relay node does not have to have a direct connection to each of the other nodes , but the message between the relay node and the ad hoc network node whose distance from the relay node is greater than one hop is forwarded by the intermediate ad hoc network node. Thus, within a subnet served by a relay node, a connection may involve an end node and one or more intermediate nodes. Self-organizing network nodes can also form different subnets. A relay node may also serve more than one ad hoc network and have different radio interfaces. In addition to mobile terminals, an ad hoc network may also include awireless router 140, which may also assume the role of a relay node. Ad hoc network nodes, wireless routers, and access points are generally network elements that can introduce the control process of the present invention. Wireless routers can also be located within the access domain, in which case the ad hoc network can penetrate into the access domain.

每个本地自组织网络可因此被连接到包括至少一个无线接入网络和核心网络的覆盖网络基础设施。无线接入网络和/或核心网络可进一步地被连接到一个或多个外部网络，例如因特网。核心网络和/或外部网络通常包括服务提供商130。Each local ad hoc network may thus be connected to an overlay network infrastructure comprising at least one radio access network and a core network. The radio access network and/or the core network may further be connected to one or more external networks, such as the Internet. The core network and/or the external network typically includeservice providers 130 .

图2是根据本发明的业务及无线资源控制过程200的一个实施例的示意图。指定到某一方向的多个包流，即可为其找到公共无线链路的包流，被输入给控制过程。在该过程中，包首先基于各个流的服务参数被装配成输出包流。这里假定输出包流被指定到一个目的节点(其可为该各个包流的目的节点)。服务参数为输出流确定某一服务等级。此后，基于无线设备中可用的无线发送资源的当前状态(链路层信息)以及基于服务等级，为重新安排的包选择一组无线发送资源。该选择因此涉及操作模式的选择，并且也可能涉及无线链路的选择，如果所选择的操作模式包括若干链接的话。无线链路的选择涉及相关链接参数，例如功率参数的选择。FIG. 2 is a schematic diagram of an embodiment of a service and radio resource control process 200 according to the present invention. Multiple packet flows destined for a certain direction, ie packet flows for which a common wireless link is found, are input to the control process. In this process, packets are first assembled into an output packet flow based on the service parameters of the individual flows. It is assumed here that the outgoing packet flow is destined to one destination node (which may be the destination node for the respective packet flow). The service parameter specifies a certain class of service for the output stream. Thereafter, a set of radio transmission resources is selected for the rescheduled packets based on the current state of the radio transmission resources available in the wireless device (link layer information) and based on the class of service. This selection thus involves the selection of the mode of operation, and possibly also the selection of the wireless link, if the selected mode of operation comprises several links. The selection of a radio link involves the selection of relevant link parameters, such as power parameters.

基于路由信息，接着搜索从无线设备引至输出包流的目的节点并且满足包的质量要求的路径。当考虑路径的服务质量时，假定路径的第一段利用所选择的无线发送资源组或其子集来实现。Based on the routing information, a path is then searched that leads from the wireless device to the destination node of the outgoing packet flow and that satisfies the quality requirements of the packet. When considering the quality of service of a path, it is assumed that the first segment of the path is implemented using the selected set of radio transmission resources or a subset thereof.

如果找到可接受的路径，检查无线设备的当前状态并且根据该状态调度包的发送。如果必要的话，在发送之前改变无线设备的状态并且控制设备的其他操作模式，以使其不降低发送设备的性能。调度过程也可利用其他的输入信息，这样的状态控制信息接收自网络。如果没有直接找到可接受的路径，则控制过程例如测试服务等级是否将被折衷，或其是否仍可通过重新配置无线发送资源组而被满足。下面更详细地讨论这点。如图所示，以上阶段的每个也可在与一个或多个其他单元通信的分立单元中执行。如下面所讨论的，从无线设备到目的节点的可用路径也可通过外部路由算法获得。If an acceptable path is found, the current state of the wireless device is checked and the transmission of packets is scheduled according to that state. If necessary, the state of the wireless device is changed and other operating modes of the device are controlled prior to transmission so that it does not degrade the performance of the transmitting device. The scheduling process may also utilize other input information, such state control information received from the network. If no acceptable path is found directly, the control process eg tests whether the service level is to be compromised, or whether it can still be satisfied by reconfiguring the set of radio transmission resources. This is discussed in more detail below. As shown, each of the above stages may also be performed in a separate unit in communication with one or more other units. As discussed below, available paths from a wireless device to a destination node can also be obtained through an external routing algorithm.

如果存在关联于输出包流的若干目的节点(即，如果各个流具有不同的目的地)，则为每个目的节点搜索可接受的路径。通过在路径的每一段上的业务必须经历该业务所需要的服务等级的事实来确定与每个路径相关的QoS要求(即，服务等级)。If there are several destination nodes associated with an outgoing packet flow (ie, if the individual flows have different destinations), an acceptable path is searched for each destination node. The QoS requirements (ie, service levels) associated with each path are determined by the fact that traffic on each segment of the path must experience the service level required by that traffic.

图3是根据本发明的一个实施例图解业务及无线资源控制过程的流程图。该过程可接收多个包流，这些包流可同时地或者在不同接收周期来自无线设备的不同无线接口(步骤300)。如上所述，在步骤300所接收的包流使得能够为其选择公共无线链路，即包流可从无线设备沿相同方向全部发送。然而，包流可被指定到一个或多个目的节点。该过程也可只接收一个包流，该包流被传送给若干输出接口。例如，相同数据可从核心网络通过网关节点下载到多个自组织网络。首先假定包流被指定到一个目的节点。FIG. 3 is a flowchart illustrating traffic and radio resource control procedures according to an embodiment of the present invention. The process can receive multiple packet streams, which can come from different wireless interfaces of a wireless device simultaneously or at different reception periods (step 300). As mentioned above, the packet stream received atstep 300 enables the selection of a common wireless link for it, ie the packet stream can all be sent in the same direction from the wireless device. However, a packet flow can be directed to one or more destination nodes. The process can also receive only one packet stream, which is delivered to several output interfaces. For example, the same data can be downloaded from the core network to multiple ad hoc networks through gateway nodes. It is first assumed that the packet flow is destined for a destination node.

如果无线设备接收到比将要汇聚的包流更多的包流，例如基于包/流的路由信息和/或基于流的输入接口，无线设备可确定要汇聚的包流。针对不同类型的连接/无线技术，QoS参数可被不同地定义。这意味着无线设备可以能够将不同定义的QoS参数转换为公共尺度，以便能够互相比较不同定义的参数。基于参数及其比较，无线设备之后将所接收的流的包装配成输出包流，同时保持不同流之间的服务公平性(步骤301)。基于各个流的QoS参数为输出包流定义服务等级要求。If the wireless device receives more packet flows than will be aggregated, such as packet/flow-based routing information and/or flow-based input interfaces, the wireless device may determine packet flows to aggregate. QoS parameters may be defined differently for different types of connections/radio technologies. This means that a wireless device may be able to convert differently defined QoS parameters into a common scale so that differently defined parameters can be compared with each other. Based on the parameters and their comparison, the wireless device then packs the received stream into an outgoing packet stream while maintaining service fairness between the different streams (step 301 ). Class of service requirements are defined for outgoing packet flows based on the QoS parameters of the individual flows.

一旦输入流已被汇聚，则控制过程搜索用于传递输出包流的至少一个无线链路(步骤302)。无线设备因此从输出包流被指定到的方向的可用链路中选择最优无线链路。该选择可基于各种标准，例如链路的吞吐能力、功耗、由无线电通信所引起的干扰、链路的容量、负载系数等。该信息通常从链路层获得，但选择标准也可包括预定义的系统参数。链路的选择包括操作模式的选择(即，将使用的连接技术)。然而，所选择的操作模式，例如蓝牙或WLAN，可包括若干链路，在这种情况下，除操作模式的选择外，链路也将被选择。Once the input stream has been aggregated, control searches for at least one wireless link for delivering the output packet stream (step 302). The wireless device thus selects the optimal wireless link from the available links in the direction to which the outgoing packet flow is destined. The selection may be based on various criteria, such as throughput capability of the link, power consumption, interference caused by radio communications, capacity of the link, load factor, and the like. This information is usually obtained from the link layer, but selection criteria can also include predefined system parameters. The selection of the link includes the selection of the mode of operation (ie the connection technology to be used). However, the selected mode of operation, eg Bluetooth or WLAN, may comprise several links, in which case the link will also be selected in addition to the selection of the mode of operation.

当为重新安排的包选择链路时，控制过程可决定改变各个参数，以便使某一操作模式成为输出包流的最好可用选择。例如，控制过程可再分配各个链路的资源。这可涉及将更多的资源(时隙、码等等)分配给一个或多个重负荷的链路。控制过程也可执行使某无线技术更适用于包流的高级操作。例如，控制过程可改变所使用的各种发送参数，例如调制率、编码或发送功率，或所使用的各种接收参数，例如接收阈值。控制过程也可决定采用其他技术，例如波束形成，来减少多址干扰(MAI)及背景噪声。控制过程也可根据无线电通信/链路的容量和能力决定在不同无线电通信或不同链路之间分割业务。例如，控制过程可为用户数据选择一个无线电通信，而为控制数据选择另一个无线电通信。When selecting a link for a rescheduled packet, the control process may decide to change various parameters in order to make a certain mode of operation the best available choice for the outgoing packet stream. For example, the control process may reallocate resources for the various links. This may involve allocating more resources (slots, codes, etc.) to one or more heavily loaded links. The control process can also perform advanced operations that make a certain wireless technology more suitable for packet flow. For example, the control process may vary the various transmission parameters used, such as modulation rate, coding or transmission power, or the various reception parameters used, such as reception thresholds. The control process may also decide to use other techniques, such as beamforming, to reduce multiple access interference (MAI) and background noise. The control process may also decide to split traffic between different radio communications or different links according to the capacity and capabilities of the radio communications/links. For example, the control process may select one radio communication for user data and another radio communication for control data.

当为输出包流已经找到至少一个可能的无线链路时，控制过程启动路由算法以找出从无线设备到目的节点的路径，该路径满足各个流的QoS要求(步骤303)。控制过程进一步地设置定义结果的最大等待时间的定时器。如果在定时器终止之前找到从无线设备到目的节点的至少一个可接受路径(步骤304/是)，则无线设备知道其能够以所需服务等级发送包流。如果在步骤302中只选择了一个无线链路，则无线设备调度包的发送(步骤306)。这涉及检查无线设备的当前状态以定义无线设备何时能够处于可执行发送的状态。这也可涉及检查输入状态控制信息，如果可从无线设备之外，例如从网络控制无线设备的状态的话。之后无线设备根据所调度的发送时间启动所选择的链路并在所选择的链路上发送包(步骤310)。在这以前，如果必要的话，控制无线设备的状态(步骤308及309)。除针对相应于所选择的链路的操作模式将该设备控制在活动状态之外，状态的控制可涉及在无线设备中操作的一个或多个其他无线电通信的控制。可能需要其他无线电通信的控制以保证当在所选择的链路上发送时，其不降低设备的性能，即在发送期间在所选择的链路上保持QoS要求。状态的控制也可涉及不同操作模式的状态的互同步，以便确信所需的服务等级在发送期间被保持。When at least one possible wireless link has been found for the outgoing packet flow, the control process starts a routing algorithm to find a path from the wireless device to the destination node that satisfies the QoS requirements of the respective flows (step 303). The control process further sets a timer defining a maximum waiting time for the result. If at least one acceptable path is found from the wireless device to the destination node before the timer expires (step 304 /Yes), the wireless device knows that it can send the packet flow with the required service level. If only one wireless link is selected instep 302, the wireless device schedules transmission of packets (step 306). This involves checking the current state of the wireless device to define when the wireless device can be in a state in which to perform a transmission. This may also involve checking incoming status control information if the status of the wireless device can be controlled from outside the wireless device, such as from a network. The wireless device then activates the selected link and transmits the packet on the selected link according to the scheduled transmission time (step 310). Prior to this, if necessary, the state of the wireless device is controlled (steps 308 and 309). In addition to controlling the device in an active state for the mode of operation corresponding to the selected link, control of the state may involve control of one or more other radio communications operating in the wireless device. Control of other radio communications may be required to ensure that it does not degrade the performance of the device when transmitting on the selected link, ie QoS requirements are maintained on the selected link during transmission. Control of the state may also involve mutual synchronization of the states of the different modes of operation in order to be sure that the required level of service is maintained during transmission.

如果在步骤302中选择多于一个的无线链路，则发送的调度可进一步地包括对用于发送的链路的最后决定。基于所找到的路径可做出该决定，即从步骤303中获得的路径信息可被用来为发送最后选择一个或多个无线链路。由于每个所选择的链路可形成所找到的路径的第一段，控制过程可选择就该路径而言最合适的链路。控制过程也可选择使用多于一个的链路，在这样的情况下，在链路之间分割数据流。If more than one wireless link is selected instep 302, the scheduling of transmissions may further include a final decision on the link used for transmission. This decision can be made based on the path found, ie the path information obtained fromstep 303 can be used to finally select one or more wireless links for transmission. Since each selected link may form the first segment of the path found, the control process may select the most suitable link for that path. The control process may also choose to use more than one link, in which case the data flow is split between the links.

如果在定时器终止之前没有找到可接受的路径(步骤305/是)，则控制过程继续再选阶段307，其中控制过程测试QoS要求是否将被折衷，或所需的服务等级是否仍可通过选择无线发送资源或通过重新配置所选择的无线发送资源来实现。取决于路由步骤303的结果，可以不同方式实现这点。首先，如果路由步骤产生其QoS值比预定值更接近最初的QoS要求的路径，则可从所述路径中选择路径。例如，可检查提供最高服务等级的路径。就此而论，控制过程可改变步骤302中所选择的链路的发送功率或其他参数，来检查哪个组合为所述路径提供最好的QoS值。其次，控制过程可回到步骤302并重复链路选择，其中可能使用新的QoS要求。这里，控制过程也可改变链路的发送功率或其他参数。之后检查可用路径以确定是否找到提供可接受服务等级的路径。If no acceptable path is found before the timer expires (step 305/Yes), the control process continues to thereselection stage 307, where the control process tests whether the QoS requirements will be compromised, or whether the required service level is still available through selection The wireless transmission resources may be realized by reconfiguring the selected wireless transmission resources. Depending on the outcome of therouting step 303, this can be achieved in different ways. First, if the routing step produces paths whose QoS values are closer to the original QoS requirements than a predetermined value, a path may be selected from among said paths. For example, the path that provides the highest level of service can be examined. In this regard, the control process may vary the transmit power or other parameters of the link selected instep 302 to check which combination provides the best QoS value for said path. Next, control can go back to step 302 and repeat the link selection, possibly using new QoS requirements. Here, the control process can also change the transmission power or other parameters of the link. The available paths are then checked to determine if one is found that provides an acceptable level of service.

当已经找到提供达到所要求的服务等级或足够接近该服务等级的服务等级的路径，并且由所选择的资源实现该路径的第一段时，控制过程跳到步骤306并如以上所讨论地继续进行。When a path has been found that provides a level of service up to or close enough to the required level of service, and the first segment of the path is implemented by the selected resource, control jumps to step 306 and continues as discussed above conduct.

如果输出包流中的不同流具有多于一个的目的地址(目的节点)，则针对每个目的节点搜索可接受的路径。如果没有为一个或多个目的节点找到可接受的路径，则控制过程进入再选阶段，在该阶段中控制过程可尝试重新配置所选择的无线发送资源，并在重新配置之后针对每个目的节点重复该过程，以检查是否可为目的节点找到可接受的路径。再选可限于不成功的情况，或其可包含整个路径集的再选。控制过程也可回到步骤301以便重新装配输出流，使得更有利于没有找到可接受的路径的包。此后，可用路径的服务等级可被再次评估。评估之前，可重新配置无线发送资源，或可选择新的无线发送资源。If different flows in the outgoing packet flow have more than one destination address (destination node), an acceptable path is searched for each destination node. If no acceptable paths are found for one or more destination nodes, the control process enters the reselection phase, in which the control process may attempt to reconfigure the selected radio transmission resources and, after reconfiguration, for each destination node Repeat the process to check if an acceptable path can be found for the destination node. Reselection may be limited to unsuccessful cases, or it may encompass reselection of the entire set of paths. Control may also return to step 301 to reassemble the output stream to favor packets that did not find an acceptable path. Thereafter, the service levels of the available paths can be evaluated again. Prior to evaluation, radio transmission resources may be reconfigured, or new radio transmission resources may be selected.

链路的选择因此在实际路由之前被执行，使得可以首先为要传送的数据选择最优的物理资源。然而，该物理资源的选择与路由被一起紧密地执行，使得基于可能的可选路由及相应的服务等级仍可影响分配给将被发送的数据的物理资源。如此，可为要传送的数据找到物理及无线电资源以及服务质量的最优组合。The selection of the links is thus performed before the actual routing, so that the optimal physical resources for the data to be transferred can first be selected. However, the selection of the physical resources is performed closely together with the routing, so that the allocation of physical resources to the data to be sent can still be influenced based on possible alternative routes and corresponding service levels. In this way, an optimal combination of physical and radio resources and quality of service can be found for the data to be transmitted.

图4是根据本发明的无线设备的一般结构的示意图。无线设备的核心由控制单元400及公共包调度器401组成，其执行以上所描述的操作并且被连接到无线设备的各个接口。然而，如下面所讨论的，路由步骤可在无线设备之外全部或部分地执行。在后一情况中，可在无线设备之外搜索路径，但相关的QoS评估例如可在无线设备中执行。Fig. 4 is a schematic diagram of the general structure of a wireless device according to the present invention. The core of the wireless device is composed of a control unit 400 and acommon packet scheduler 401, which perform the operations described above and are connected to various interfaces of the wireless device. However, as discussed below, the routing steps may be performed in whole or in part outside of the wireless device. In the latter case, the path may be searched outside the wireless device, but the relevant QoS evaluation may eg be performed in the wireless device.

也应注意到，在邻近单跳跃自组织网络的情况下，例如在具有对等连接的PAN网络的情况下，多跳跃路由发现不必一定执行，而是连接建立可遵循对等通信的原则。在单跳跃网络的情况下，满足服务等级要求的路径的搜索因此不太复杂。It should also be noted that in the case of adjacent single-hop ad hoc networks, such as in the case of PAN networks with peer-to-peer connections, multi-hop route discovery does not necessarily have to be performed, but the connection establishment can follow the principle of peer-to-peer communication. In the case of single-hop networks, the search for a path that satisfies the class of service requirements is therefore less complicated.

无线设备的接口可被分成两类：针对自组织网络的接口及针对网络基础设施的接口。自组织网络接口包括一个或多个接口410、411，每个提供以某一操作模式实现无线连接所需的功能。例如，一个接口可基于WLAN技术，而另一个可基于蓝牙技术、RFID技术或HomeRF技术规范。针对支持基础设施的接口也包括一个或多个接口420、421，每个提供实现到特定类型的系统(即，网络基础设施)的连接所需的功能。例如，接口411可提供到GSM或UMTS网络的连接，而接口412提供到WLAN网络的连接。包含于无线设备中的实际接口取决于无线设备的类型与操作。更进一步地，虽然这里接口被示为分立单元，然而如果两个操作模式利用类似的技术，其也可被部分地组合。例如，如果两个操作模式(即，技术)利用跳频，则RF前端可被相应的接口共享。The interfaces of wireless devices can be divided into two categories: interfaces to ad hoc networks and interfaces to network infrastructure. The ad hoc network interface includes one ormore interfaces 410, 411, each providing the functionality required to enable wireless connectivity in a certain mode of operation. For example, one interface may be based on WLAN technology, while the other may be based on Bluetooth technology, RFID technology or HomeRF technology specifications. Interfaces to supporting infrastructure also include one ormore interfaces 420, 421, each providing the functionality required to enable connectivity to a particular type of system (ie, network infrastructure). For example,interface 411 may provide a connection to a GSM or UMTS network, while interface 412 provides a connection to a WLAN network. The actual interfaces included in the wireless device depend on the type and operation of the wireless device. Further, although the interface is shown here as a separate unit, it could also be partially combined if the two modes of operation utilize similar technology. For example, if two modes of operation (ie, technologies) utilize frequency hopping, the RF front ends can be shared by the corresponding interfaces.

无线设备进一步地包括存储器单元430，并且特别是在移动站的情况下，其也可包括读卡器405，诸如(通用用户模块((U)SIM)、用户身份模块(UIM)或(用户)集成电路卡((U)ICC)406的身份模块可插入该读卡器中。存储器单元以及可能的读卡器被连接到控制单元，以使控制单元能够从存储器单元及身份模块读取数据，以及将数据写入存储器单元及身份模块。此外，无线设备通常包括用于使用无线设备的用户接口装置440。在移动站的情况下，用户接口装置通常包括显示器及小键盘。无线设备的结构也可被模块化，以使其包括与包含基础设施接口的模块分离的独立自组织网络模块。The wireless device further comprises amemory unit 430 and, particularly in the case of a mobile station, it may also comprise acard reader 405, such as (Universal Subscriber Module ((U)SIM), User Identity Module (UIM) or (User) An identity module of an integrated circuit card ((U)ICC) 406 can be inserted into the reader. The memory unit and possibly the card reader are connected to the control unit so that the control unit can read data from the memory unit and the identity module, And data is written into the memory unit and the identity module. In addition, the wireless device usually includes auser interface device 440 for using the wireless device. In the case of a mobile station, the user interface device usually includes a display and a keypad. The structure of the wireless device is also Can be modularized so that it includes independent ad-hoc network modules separate from modules containing infrastructure interfaces.

在图1所示的网络环境中，自组织网络路由功能性可被引入接入点中，使接入点能够与其常规功能并行地在移动自组织网状网络中提供自组织网络路由。当处于自组织网络模式时，接入点因此可以能够在本地或/和广域自组织网络内将包从自组织网络源节点发送到自组织网络目的节点。同时，接入点可处理指定到其自己的覆盖区的业务及控制数据。多无线电通信节点也可整个象自组织网络节点那样操作，从而处理本地自组织网络上的自组织网络业务，或将本地网络连接到覆盖网络上。In the network environment shown in Figure 1, ad hoc network routing functionality may be introduced into the access point, enabling the access point to provide ad hoc network routing in a mobile ad hoc mesh network in parallel to its regular functions. When in ad hoc network mode, the access point may thus be able to send packets from the ad hoc network source node to the ad hoc network destination node within the local and/or wide area ad hoc network. At the same time, the access point can handle traffic and control data destined to its own coverage area. The multi-radio communication node may also operate entirely as an ad hoc network node, handling ad hoc network traffic on a local ad hoc network, or connecting a local network to an overlay network.

图5图解了其中自组织网络路由功能被引入移动通信网络520的基站中的通信环境。通信环境包括通过既在移动通信网络中作为基站运行又在相应的自组织网络区域中作为无线路由器运行的基站511及512连接到移动通信网络，即连接到蜂窝网络的两个不同自组织网络。由于其双重功能，此处基站被称为路由基站。这里假定自组织网络501内的自组织网络节点503想与位于远程自组织网络区域内的另一个自组织网络节点504建立连接。在该例子中，源节点503执行结合图3所讨论的步骤，除了其现在可以在步骤303中从基站511启动路由算法(在这样的情况下基站可提供一个可选路径的列表给源节点)之外。FIG. 5 illustrates a communication environment in which an ad hoc network routing function is introduced in a base station of a mobile communication network 520 . The communication environment consists of two different ad hoc networks connected to the mobile communication network, i.e. connected to the cellular network, via thebase stations 511 and 512 operating both as base stations in the mobile communication network and as wireless routers in the corresponding ad hoc network areas. Due to its dual function, the base station is referred to herein as a routing base station. It is assumed here that an adhoc network node 503 in thead hoc network 501 wants to establish a connection with another ad hoc network node 504 located in a remote ad hoc network area. In this example, thesource node 503 performs the steps discussed in connection with FIG. 3, except that it may now initiate the routing algorithm from the base station 511 in step 303 (in which case the base station may provide a list of alternative paths to the source node) outside.

在这种网络辅助路由中，基站可通过移动通信网络将业务传送给服务于目的节点的本地自组织网络区域的基站512。基站512然后可通过一个或多个自组织网络节点或无线路由器将业务传送给目的节点。所建立的路径就跳跃数或功耗而言可能不是最优的，但这些缺点通过基站具有无限制的电源供给的事实得到补偿，这与移动自组织网络节点相反。此外，利用路由基站的方式在没有将严格的能量及处理限制引入节点的情况下，带来建立分层自组织网络的可能。当在分层网络中分配或选出中继节点(网关节点)功能时，路由基站也可以是优选节点。In such network-assisted routing, the base station can transmit the traffic through the mobile communication network to thebase station 512 serving the local ad hoc network area of the destination node.Base station 512 may then forward the traffic to the destination node through one or more ad hoc network nodes or wireless routers. The established paths may not be optimal in terms of number of hops or power consumption, but these disadvantages are compensated by the fact that base stations have unlimited power supplies, as opposed to mobile ad hoc network nodes. In addition, the use of routed base stations brings the possibility of building hierarchical ad hoc networks without introducing strict energy and processing constraints into nodes. The routing base station may also be the preferred node when assigning or electing the relay node (gateway node) function in a hierarchical network.

图6是图解假定单元是具有WLAN及蓝牙操作模式的移动站的本发明一个实施例中的无线设备状态的状态图。终端可包括图中示为圆圈的七个主要状态或模式。这些是关闭状态、蓝牙状态、配置状态、普通状态、后台状态、蓝牙休眠状态以及WLAN休眠状态。如果终端的电池被移去或是空的，则终端处于关闭状态。当连接上电池或插入充电器时，如果终端具有与其相关的移动电话，则终端启动并进入蓝牙状态。在该状态中，可通过移动电话控制终端。然而，如果终端没有与之相关的移动电话，则从关闭状态进入配置状态。否则仅可响应于从移动电话给出的配置请求而从蓝牙状态进入配置状态。在普通状态中，两种无线电通信都可以是活动的。如果到主机(即，到控制实体)的连接丢失，则终端可从普通状态进入后台状态。WLAN及本地网络服务在后台状态中保持活动。在蓝牙休眠模式中，蓝牙无线电通信在网络扫描之间关闭。如果找到主机，终端回到以前的状态。同时WLAN可以是活动的。在WLAN休眠模式中，WLAN无线电通信在网络扫描之间关闭。如果找到网络，终端回到以前的模式。同时蓝牙可以是活动的。Figure 6 is a state diagram illustrating the state of the wireless device in one embodiment of the invention assuming the unit is a mobile station with WLAN and Bluetooth modes of operation. A terminal can include seven main states or modes shown as circles in the figure. These are off state, bluetooth state, configuration state, normal state, background state, bluetooth sleep state and WLAN sleep state. If the terminal's battery is removed or empty, the terminal is in the off state. When the battery is connected or the charger is plugged in, if the terminal has a mobile phone associated with it, the terminal starts up and enters the bluetooth state. In this state, the terminal can be controlled by the mobile phone. However, if the terminal does not have a mobile phone associated with it, the configured state is entered from the closed state. Otherwise the configuration state can only be entered from the Bluetooth state in response to a configuration request given from the mobile phone. In normal state, both radio communications can be active. If the connection to the host (ie to the controlling entity) is lost, the terminal can enter the background state from the normal state. WLAN and local network services remain active in the background state. In Bluetooth Sleep Mode, the Bluetooth radio communication is turned off between network scans. If a host is found, the terminal returns to its previous state. At the same time the WLAN can be active. In WLAN sleep mode, WLAN radio communication is turned off between network scans. If a network is found, the terminal returns to the previous mode. Bluetooth may be active at the same time.

如果该终端处于普通或蓝牙状态，蓝牙链路可因此被直接启动；而如果该终端处于普通或WLAN状态，WLAN链路可被直接启动。如果该终端处于其中不可进行包发送的休眠状态或后台状态，在所调度的发送来临之前改变终端的状态。If the terminal is in the normal or Bluetooth state, the Bluetooth link can thus be directly activated; and if the terminal is in the normal or WLAN state, the WLAN link can be directly activated. If the terminal is in a dormant or background state in which packet transmission is not possible, the state of the terminal is changed before the scheduled transmission is imminent.

就一切情况而论，状态转变可由多模式单元/设备中的链路管理(链路层操作)、独立的或网络辅助的信令装置、或其任何组合引起并执行。In all cases, state transitions may be caused and performed by link management (link layer operations) in the multi-mode unit/device, stand-alone or network-assisted signaling means, or any combination thereof.

虽然前面参考附图中所示的例子描述了本发明，然而显然本发明不局限于这些，在没有背离本发明的范围和实质的情况下可由本领域技术人员来修改本发明。例如，自组织网络和覆盖网络所基于的技术可根据当前和将来的连接标准而改变。Although the present invention has been described above with reference to the examples shown in the accompanying drawings, it is obvious that the present invention is not limited thereto and can be modified by those skilled in the art without departing from the scope and spirit of the present invention. For example, the technologies on which ad hoc and overlay networks are based may change according to current and future connectivity standards.

Claims (22)

1. method of in having the Wireless Telecom Equipment of a plurality of operator schemes, carrying out the control of business and resource, the method comprising the steps of:

The data cell of at least one input traffic is assembled into output stream, and this data cell is assigned at least one destination node, and the grade of service requires to be associated with in this at least one destination node each;

Select first group of radio transmission resources for output stream, wherein first group of radio transmission resources belongs to radio transmission resources available in this Wireless Telecom Equipment;

Search causes the path of one of this at least one destination node from this Wireless Telecom Equipment, when one section of this path is realized by first group of radio transmission resources, the grade of service requirement corresponding to this destination node is satisfied in this path, wherein carries out this search step in this at least one destination node each; And

When in search step, finding the path in this at least one destination node each, the transmission of dispatching this output stream, wherein this transmission is scheduled as by first group of radio transmission resources and carries out.

2. according to the method for claim 1, comprise further and determine to have the step in the path of the high grade of service in the middle of causing all paths of destination node, wherein this determining step is at not finding the destination node in the path of satisfying the respective service class requirement to carry out to it in search step.

3. according to the method for claim 2, comprise step further:

Dispose this first group of radio transmission resources;

In response to this configuration step, test the determined grade of service requirement whether path of the high grade of service satisfies the node of this at least one purpose that has; And

When the grade of service requirement of this at least one destination node is satisfied in determined path, the transmission of scheduling output stream, wherein this transmission is scheduled as by first group of radio transmission resources and carries out,

Wherein when in search step, not finding the path of satisfying the respective service class requirement, carry out this configuration step at this at least one destination node.

4. according to the method for claim 1, comprise step further:

For output stream is selected second group of radio transmission resources;

Repeat this search step at second group of radio transmission resources; And

When in repeating step, finding the path in this at least one destination node each, the transmission of scheduling output stream, wherein this transmission is scheduled as by second group of radio transmission resources and carries out.

5. according to the method for claim 4, comprise the step of radio transmission resources available in this Wireless Telecom Equipment of configuration further.

6. according to the method for claim 4, comprise the step of rearranging the data cell in the output stream further.

7. according to the process of claim 1 wherein that this search step comprises that searching causes whole paths of this at least one destination node from this Wireless Telecom Equipment.

8. according to the method for claim 7, wherein this search step is included in and carries out this searching step in another network element.

9. according to the method for claim 1, further comprise step: the operator scheme of controlling this Wireless Telecom Equipment, make (1) when transmission is scheduled execution, operator scheme corresponding to first group of radio transmission resources is movable, and (2) for other operator schemes of this Wireless Telecom Equipment, this Wireless Telecom Equipment is in the state that the grade of service that keeps each destination node during the transmission requires.

10. according to the method for claim 9, wherein this controlled step is included in the operator scheme that changes this Wireless Telecom Equipment before the transmission of at least one output stream.

11. according to the process of claim 1 wherein that this selection step comprises the information of the current state of utilizing radio transmission resources available in relevant this Wireless Telecom Equipment.

12. according to the method for claim 9, wherein:

These other operator schemes comprise a plurality of modes of operation; And

This controlled step comprises these a plurality of modes of operation synchronous, to keep the grade of service requirement of each destination node during sending.

13. a system that is used for carrying out at the Wireless Telecom Equipment with a plurality of operator schemes business and resource control, this system comprises:

Be used for will input data sheet flow filament being assembled into the professional assembling device of output stream, this data cell is assigned at least one destination node, and this output stream has grade of service requirement in this at least one destination node each;

Be used to this output stream to select the resource selection device of first group of radio transmission resources, wherein first group of radio transmission resources belongs to current available radio transmission resources in this Wireless Telecom Equipment;

Be used to search for the route device in the path that causes one of this at least one destination node, when one section of this path is realized by first group of radio transmission resources, the grade of service requirement corresponding to this destination node is satisfied in this path, and this route device is configured to search at each the path in this at least one destination node; And

Be used for dispatching the service dispatching device of the transmission of this output stream when finding the path at each of this at least one destination node, wherein this transmission is scheduled as by first group of radio transmission resources and carries out.

14. system according to claim 13, further comprise control device, be used to control the operator scheme of this Wireless Telecom Equipment, make (1) when transmission is scheduled execution, operator scheme corresponding to first group of radio transmission resources is movable, and (2) for other operator schemes of this Wireless Telecom Equipment, this Wireless Telecom Equipment is in the state that the grade of service that keeps each destination node during the transmission requires.

15. according to the system of claim 14, wherein professional assembling device, resource selection device, service dispatching device and control device are present in the single wireless communication equipment.

16. according to the system of claim 14, wherein:

Other operator schemes comprise a plurality of modes of operation; And

Control device is configured to make these a plurality of modes of operation synchronous, to keep the grade of service requirement of each destination node during sending.

17. the Wireless Telecom Equipment with a plurality of operator schemes, this Wireless Telecom Equipment comprises:

Be used for input data sheet flow filament is assembled into the professional assembly unit of at least one output stream, this data cell is assigned at least one destination node, and this output stream has at each the grade of service requirement in this at least one destination node;

Be used to this output stream to select the resource selection unit of first group of radio transmission resources, wherein first group of radio transmission resources belongs to current available radio transmission resources in this Wireless Telecom Equipment;

Path detection device is used for detecting each for this at least one destination node, whether can obtain causing the path of this destination node, and when one section of this path was realized by first group of radio transmission resources, the respective service class requirement was satisfied in this path; And

The service dispatching unit, it is used to dispatch the transmission of output stream in response to path detection device, and wherein the service dispatching unit is configured to transmission is scheduling to by first group of radio transmission resources and carries out.

18. Wireless Telecom Equipment according to claim 17, further comprise control device, be used for the control operation pattern, make (1) when transmission is scheduled execution, operator scheme corresponding to first group of radio transmission resources is movable, and (2) for other operator schemes of this Wireless Telecom Equipment, this Wireless Telecom Equipment is in the state that the grade of service that keeps each destination node during the transmission requires.

19. Wireless Telecom Equipment according to claim 17, wherein path detection device comprises at the interface that resides in the route entity outside this Wireless Telecom Equipment, and this interface is configured to receive the relevant information that causes the path of this at least one destination node from this Wireless Telecom Equipment.

20. according to the Wireless Telecom Equipment of claim 17, wherein path detection device comprises and is used to search for the route device that causes whole paths of this destination node from this Wireless Telecom Equipment.

21. according to the Wireless Telecom Equipment of claim 18, wherein:

These other operator schemes comprise a plurality of modes of operation; And

This control device is configured to make these a plurality of modes of operation synchronous, to keep the grade of service requirement of each destination node during sending.

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